Identification of the pest:
| Stem borer: Chilo partellus | |
| Symptom of damage : Withering and drying of central shoot -“ dead heart” Red mining in the midrib Bore holes visible on the stem near the nodes. Tender folded leaves have parallel “ shot hole ” Affected parts of stem may show internally tunneling caterpillars. Identification of the pest: Egg : Scale-like flat oval eggs in batches on the under surface of leaves near the midribs Larva : Yellowish brown with a brown head and prothoracic shield Adult : Moth is medium size, straw coloured Management : Collect the stubbles after harvest and burn to destroy diapausing borers Set up light trap till midnight to attract and kill the stem borer moth Mix any one of the following insecticides with sand (total quantity of 50 kg) | |
| Larvae | |
| Adult |
- Withering and drying of central shoot -“ dead heart”
- Red mining in the midrib
- Bore holes visible on the stem near the nodes.
- Tender folded leaves have parallel “ shot hole ”
- Affected parts of stem may show internally tunneling caterpillars.
- Egg : Scale-like flat oval eggs in batches on the under surface of leaves near the midribs
- Larva : Yellowish brown with a brown head and prothoracic shield
- Adult : Moth is medium size, straw coloured
Adult
Management :
- Collect the stubbles after harvest and burn to destroy diapausing borers
- Set up light trap till midnight to attract and kill the stem borer moth
- Mix any one of the following insecticides with sand (total quantity of 50 kg)